<template>
    <view class="goods-item">
      <!-- 商品左侧图片区域 -->
      <view class="goods-item-left">
              <radio :checked="goods.goods_state" color="#c00000" v-if="showRadio" @click="radioClickHandler"></radio>
        <image class="goods-image" :src="goods.goods_small_logo || defaultPic"></image>
      </view>
      <!-- 商品右侧信息区域 -->
      <view class="goods-item-right">
      <!-- 商品标题 -->
      			<view class="goods-name">{{goods.goods_name}}</view>
      			<!-- 商品价格 -->
      			<!-- <view class="goods-price">{{goods.goods_price | tofixed | addYuan}}</view> -->
      			<!-- <view class="goods-price">{{computedPrice}}</view> -->
      			<view class="goods-info-box">
      			    <view class="goods-price">{{tofixed2(goods.goods_price)}}</view>
      			    <!-- 商品数量 -->
      			    <uni-number-box :min="1" v-if="showNum" :value="goods.goods_count" @change="numChangeHandler"></uni-number-box>
      			</view>
      </view>
    </view>
</template>

<script>
  export default {
    name:"my-goods",
    // 定义 props 属性，用来接收外界传递到当前组件的数据
    props: {
      // 商品的信息对象
      goods: {
        type: Object,
        default:()=> ({}),
        // https://juejin.cn/post/6960500339107692581
        // 一般规则，引用类型 arrar/object 使用函数返回默认值
      },
      // 是否展示图片左侧的 radio
          showRadio: {
            type: Boolean,
            // 如果外界没有指定 show-radio 属性的值，则默认不展示 radio 组件
            default: false,
          },
          showNum:{
              type: Boolean,
              default: false,
          }
    },
    data() {
      return {
        // 默认的空图片
        defaultPic: 'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png',
      }
    },
    // 过时了，了解一下
    filters: {
      // 把数字处理为带两位小数点的数字
      			tofixed(num) {
      				return Number(num).toFixed(2)
      			},
      			addYuan(num) {
      				return '¥' + num
      			},
    },
    // 基于当前组件的状态，数据。算出一个新的状态，数据
    		computed: {
    			computedPrice() {
    
    				return Number(this.goods.goods_price).toFixed(2)
    			}
    		},
    
    		methods: {
    			tofixed2(num) {
    				return '¥' + Number(num).toFixed(2)
    			},
                // 购物车商品列表选中按钮点击事件处理函数
                radioClickHandler(){
                     this.$emit('radio-change', {
                          // 商品的 Id
                          goods_id: this.goods.goods_id,
                          // 商品最新的勾选状态
                          goods_state: !this.goods.goods_state
                        })
                },
                // numberbox 数量发生变化时
                numChangeHandler(value){
                    // console.log(value);
                    this.$emit('num-change',{
                        // 商品的 Id
                        goods_id: this.goods.goods_id,
                        // 商品最新的勾选状态
                        goods_count: value
                    })
                },
    		}
    
  }
</script>

<style lang="scss">
  .goods-item {
    display: flex;
    border-bottom: 1px solid #efefef;
    padding: 8rpx;
    .goods-item-left {
        display: flex;
          justify-content: space-between;
          align-items: center;
      .goods-image {
        width: 200rpx;
        height: 200rpx;
        vertical-align: middle;
      }
    }
    .goods-item-right {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      .goods-title {
        font-size: 24rpx;
      }
      .goods-info-box {
           display: flex;
              align-items: center;
              justify-content: space-between;
          .goods-price{
                  font-size: 32rpx;
                  color: #c00000;
                }
      }
      
    }
  }
</style>